We are working to design, build and control a quantum
information processor whose complexity exceeds that which can be fully
simulated on a classical computer. The
processor is based on nodes of nuclear spins which are locally controlled via
an individually addressable electron spin.
The electron spins can be efficiently reset through their interactions
with a high quality factor superconducting resonator, and so we are able to
remove entropy in parallel across the processor. The processor is planned to have two modes of
operation: a small (50+) qubit processor and a tiled quantum simulator. These are enabled by building the spin
processor from a Langmuir-Blodgett film, a 2-D crystal of organic free radicals
that is 1 molecule thick. Both modes of
operation are based on ensembles of processors that are tiled in 2D. So we give up the ability to perform a local
operation based on a measurement of a single qubit, but since we retain the
ability to remove entropy error correction remains possible.

I will describe recent progress in developing the
instrumentation to enable this processor and what I believe are the near term
prospects.